An Anonymous Electronic Payment System based on Discrete Logarithm Problem in Network-type Access Control

Abstract

An anonymous payment system in network-type access control is required to keep anonymity of digital information users. Existing electronic money algorithm is lacking some elements of money-number, verification of double spending in using phase and cashback. We propose an anonymous payment system added their elements. Then we show a model that keeping anonymity of digital information users is possible by appling a proposed system. Keeping anonymity of digital information users is defined that conspired bank and supplyer can't get personal data from payed electronic money,and can't recognize which contents users used. At last, we prove the security of a proposed system.